UGC NET Paper 1 GA 2013 Dec Solved Paper

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Question : 41 of 60
 
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In this series 6, 4, 1, 2, 2, 8, 7, 4, 2, 1, 5, 3, 8, 6, 2, 2, 7, 1, 4, 1, 3, 5, 8, 6, how many pairs of successive numbers have a difference of 2 each ?
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